[sql] Execute SQL script from command line

I need to alter a database using a batch file, for a simple example, drop a table. I´m using local SQL Express (SQL Server 2008 R2) with user sa and its password.

How would the bat file be?

How can I specify in the script the password and that I use in SQL Express?

Feedback Guys, first create database example live; before execute sql file below.

sqlcmd -U SA -P yourPassword -S YourHost -d live -i live.sql

You can do like this

sqlcmd -S <server Name> -U sa -P sapassword -i inputquery_file_name -o outputfile_name

From your command prompt run sqlcmd /? to get all the options you can use with sqlcmd utility

If you use Integrated Security, you might want to know that you simply need to use -E like this:

sqlcmd -S Serverinstance -E -i import_file.sql

If you want to run the script file then use below in cmd

sqlcmd -U user -P pass  -S servername -d databasename -i "G:\Hiren\Lab_Prodution.sql"